Anvil knife for sawmill hogs



Julyl 1930'. M is. AUSTIN ANVIL KNIFE" FOR )SAWMILL HOGS Filed Jan, 2, 1929 2 Sheat's-Sheet l NVENT R. zAs-zarz;

6.1: BY ATTORNEYS.

July 1, 1930. I s, us N 1,769,329

ANVIL KNIFE- FOR SAWMILL HOGS Filed Jan. 2, 1929 2 Shasta-Sheet 2 IN VEN TOR.

. I I W I I. ,3 4 ATTORNEYS. v

Patented July 1, 193% UNITED STATES PATENT; oF'FI i Anv l. KNIFE roa SAWMILL Hoes Application fi led January 2, 1929. Serial No. 329,860.

This invention relates to anvil knives for sawmill hogs.

The object of the invention is the construction of simple and efiicient knives to be used in hogs for grinding refuse wood into chips to be used for fuel or wood pulp, or making fiber boards or paper.

Another object of the invention is the construction of a knife that cuts on eight edges and having a square corner for each cut; my knives can be made harder on the points thanany other knife known to the trade, as my knives have square ends to prevent break ing; all other knives have tapered points, which will crumble when made hard, if pieces ofround iron or other iron fall intothe hog. A. still further object of the invention is the construction of knives that are interchangeable, as to which ends abut, and which knives can be quickly assembled on the V-shape anvil block of the machine for exposing one cutting edge of each of the several cutting edges for cutting action.

With the foregoing and other objects in view, my invention comprises, certain novel constructions, combinations and arrangements of parts as will be hereinafter fully described, illustrated ,in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings: V

Figure 1 is a perspective view of an OIdlfnary sawmill hog, showing my improved knives attached thereto. )5 Figure 2 is an enlarged, fragmentary top plan view of two knives constructed in accordance with the present invention, showing their contiguous ends fastened together.

Figure 3 is a fragmentary perspective view of two knives with their inner ends abutting.

Figure t is aplanview'of my knife.

Figure 5 is" end view of my knife.

Figure 6 is a fragmentary, perspective vie partly shown in se'c'tio'n,of my knife.

Figure 7 is an enlarged sectional view taken on line 7-7, Figure 1.

Figure 8 is a perspective view of the cotter pin and bolt.

Referrin to the drawings by numerals, 1

cutter, and 3 the hinged door. Formed upon the door 3 is the V shape anvil block i, to which my knives are secured by bolts 5.

The knives 6 each compriseelongated body 7 having a plurality of longitudinally extending elongated apertures 8 through which the bolts5 extend for securing the knives to the block 4. Each knife 6 has preferably a pair of sockets or apertures 9 formed in each end into which extend headed bolts 10, as shown in Figures. 1 and 2., Each knife 1 has preferably a pair of transverse apertures 11 near each end,which intersectthe end apertures 9, for the purpose hereinafter described. It is, therefore, to be understood that I preferably provide at each end of-ea c'h of myknives, a plurality of end: apertures 9 and a plurality of intersecting side aper tures 11. When the knives are'secured upon the anvil block 4, with their inner ends abut- 7 tlng, or overlapping, as clearly" shown in Figures 1, 2 and 3, bolts 10' willbe in the side apertures 11 of the outer knife and said bolts will also be extending into theend apertures 9 of the abutting knife, with cotter pins'12 in the side apertures 11 of the inner knife, said cotter pins extending through notches 13 of bolts 10 with the innerend of the cotter pins preferably bent apart, as shown by dotted lines in Figure 2, thereby holding the 3 bolts 10 in the registering apertures of the overlapping ends of the knives. removing the nuts 14 of bolts 5,-cetterpi s12end bolts 10, the knives can be quickly di'sassemr bled andrever'sed'or turned overso as to place 'a new cutting edge in position for the cutting action.

I placea washer 15 against the hinged door 3, this washer being under thecontiguous meeting ends of the knives and upon which the knives rest ;the washer is carried on the inner end of bolt 16. Bolt 16 extends through door 3, andon the bolt is look nut 17,;which lock. nut holds the bolt in an adjusted position on the door. By means of "this washer structure, the: meeting ends ofthe. knives can be supported accurately and at a desired angle on the door 3. Therefore, it: will be seen that I" have provideda slight adjustment for the inner or contacting ends of the knives.

From the foregoing, it will be seen that my knife will cut from eight edges, and in use, one of my knives will lap over another knife; that when worn, the opposite or reverse ends of the knives can be brought together, and that the sides can be reversed, so as to give a new or non-dulled cutting edge to view. I have found that the position of the knife can be changed'seven times, giving eight cutting edges, which makes my knife capable of twice as many changes as any other knife known to the art. Therefore, my knife or knives will cut more than twice as much as any other knife or plate on the market, because I have a solid point or right angled edge on my knife, whereas all other knives or plates have tapered points, which will not stand the wear as does my solid point; my cutting edges orpoints can be tempered harder than any other knife edge, which will, of course, give better service, because if a piece of iron is dropped in the hog, the point will not crumble as a tapered edge knife would do.

I have produced knives that can be reversed end for end and which are provided with registering sets ofend apertures for receiving fastening means for temporarily securing the ends together. Further, I have shown means carried by preferably the door of a hog for adjustably supporting the abutting or overlapping ends of two knives.

WVhile I have described the preferred embodiment of my invention and illustrated the same in the accompanying drawings, cer tain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claims. 7

What *I claim is:

1. An anvil knife comprising an elongated body provided at its ends with end socketlike apertures extending longitudinally of the body, and said body provided with side, transverse apertures extending through the body and across said end socket-like apertures.

2. In an apparatus of the class described, the combination with a door, of engaging anvil knives on said door, a washer under the engaging parts of said knives, and a bolt on said door and movably connected to said washer.

3. In an apparatus of the class described, the combination with a door, of a pair of overlapping anvil knives on said door, and bolt and cotter means on the overlapping parts of said knives detachably securing the same together. a

4. In an apparatus of the class described,

the combination with a door, of overlapping anvil knives on said door, and detachable fastening means in the overlapping portions of said knives detachably securing the same together.

. 5. In an apparatus of the class described, the combination with a door, of anvil knives on said door, said knives having their inner ends overlapping, a bolt with a groove extending through portions of said overlapping ends, a cotter pin in one of said knives and in the groove of said bolt, and means for securing the knives to said door.

6. In an apparatus of the class described, the combination with a hog, of detachable overlapping knives carried by a part of said hog, and said hog provided with means supporting the overlapping portions of said knives and adapted to adjust the knives slightly upon the hog.

7 In an apparatus oftheclass described,the combination with a door, of a plurality of anvil knives carried by said door, in V-shaped relation, each anvil knife provided with sets of fastening receiving apertures at its ends, some of said apertures in registry at the apex of the V, and fastening means in said registering apertures for fastening the knives together upon said door.

8. In an apparatus of the class described, the combination with a door, of anvil knives on said door, in V-shaped relation, each knife comprising a body provided with ends, said body provided at its ends with sets of registering apertures, some of saidiaperturesin registry at the apex of the V and fastening means in said registering apertures, securing said knives together. 7

9. In an apparatus of the class described, the combination with a door, of anvil knives carried by said door, in V-shapedrelation, each anvil knife comprising an elongatedbody having centrally positioned elongated apertures, said body provided at its ends with sets of registering apertures and the apertures of each set positioned at substantially right angles, some of said apertures in registry at the apex of the V, means in said centrally positioned elongated apertures securing said nives to said door, and means in the registering apertures of said sets securing the knives together.

10. In an apparatus of the class described, the combination with a door, of anvil knives carried by said door, in V-shaped relation, each anvil knife comprising an elongated body provided at its ends with end apertures and with side apertures registering with said end apertures, said knives in contacting position, at the apex of the V with some of said apertures in registry, and means in said registering apertures securing said knives together.

11. In an apparatus of the class described, the combination with a door, of anvil knives carried by said door, in V-shaped relation,

each anvil knife comprising a body provided with two ends, said body provided at each end with a double set of registering apertures, and some of said apertures in registery at the apex of the apertures of the contacting ends of said knives securing the same together.

13. In an apparatus of the class described, the combination with a door, of anvil knives carried by said door, in V-shaped relation, each knife comprising a body provided with ends, saidbody provided at its ends with sets of intersecting apertures adapted to receive either a bolt or a cotter pin, said knives having contacting ends, with some of said apertures in registry and means in said intersecting apertures of the contacting ends securing the knives together.

In testimony whereof I hereunto afiix my signature.

SEPTIMOUS LICURGUS AUSTIN.

V, and means in the registering 

